Plasmonic Cu27S24 nanocages for novel solar photothermal nanoink and nanofilm

Copper sulfide (Cu x S) as a plasmonic solar photothermal semiconductor material that expands the light collection range by altering localized surface plasmon resonance (LSPR) to the near- to mid- infrared (IR) spectral region. The versatile synthesis strategies of Cu x S nanostructure offer its var...

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Bibliographic Details
Published in:Nano research 2022-04, Vol.15 (4), p.3161-3169
Main Authors: Xi, Min, Xu, Longchang, Li, Nian, Zhang, Shudong, Wang, Zhenyang
Format: Article
Language:English
Subjects:
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Chemistry and Materials Science
Condensed Matter Physics
Copper sulfides
Covellite
Materials Science
Mathematical analysis
Nanospheres
Nanotechnology
Optical properties
Photothermal conversion
Photovoltaic cells
Plasmonics
Research Article
Semiconductor materials
Surface plasmon resonance
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Summary:Copper sulfide (Cu x S) as a plasmonic solar photothermal semiconductor material that expands the light collection range by altering localized surface plasmon resonance (LSPR) to the near- to mid- infrared (IR) spectral region. The versatile synthesis strategies of Cu x S nanostructure offer its variability of morphology and provide additional freedom in tuning the optical property. Particularly, nanocage (or nanoshell) has hybridized plasmon resonances as a result of super-positioned nanosphere and nanocavity, which extends its receiving range of solar spectrum and increases light-to-heat conversion rate. Here, we offer novel “nanoink” and “nanofilm” developed from colloidal Cu 27 S 24 nanocages with excellent solar photothermal response. Via combining experimental measurement and theoretical calculation, we estimated the optical properties of covellite Cu 27 S 24 . And based on obtained dielectric functions, we then calculated its solar photothermal performance, which was further validated by our experimental measurement. The simulation results showed that hollow Cu 27 S 24 nanocages have excellent solar photothermal performance, and exhibit much higher solar photothermal conversion efficiency than solid Cu 27 S 24 nanospheres.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-021-3880-3